Quarterly report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

for the quarterly period ended March 31, 2016

¨

Transition report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

for the transition period from
to

Commission file number: 001-32356

SPDR® GOLD TRUST

SPONSORED BY WORLD GOLD TRUST SERVICES, LLC

(Exact Name of Registrant as Specified in Its Charter)

New York

81-6124035

(State or Other Jurisdiction of

Incorporation or Organization)

(I.R.S. Employer

Identification No.)

c/o World Gold Trust Services, LLC

685 Third Ave. 27th Floor

New York, New York 10017

(Address of Principal Executive Offices)

(212) 317-3800

(Registrants Telephone Number, Including Area Code)

Indicate by check mark whether the registrant: (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act
of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past
90 days. Yes x No ¨

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File
required to be submitted and posted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files). Yes x No ¨

Indicate by check mark
whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of large accelerated filer, accelerated filer and smaller reporting
company in Rule 12b-2 of the Exchange Act. (Check one):

Large accelerated filer

x

Accelerated filer

¨

Non-accelerated filer

¨ (Do not check if a smaller reporting company)

Smaller reporting company

¨

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange
Act). Yes ¨ No x

As of April 27, 2016 the Registrant had 270,000,000 Shares outstanding.

Represents audited statement of financial condition as of September 30, 2015. Effective October 1, 2014, the SPDR® Gold Trust (the Trust)
adopted the financial presentation provisions for an investment company. See Note 2.2.

(2)

Authorized share capital is unlimited and the par value of the Shares is $0.00.

For the six months ended March 31, 2016 and year ended September 30, 2015

(Amounts in 000s of US$)

Six MonthsEndedMar-31, 2016

YearEndedSep-30, 2015(1)

Net Assets - Opening Balance

$

24,612,170

$

30,096,869

Creations

9,430,277

6,447,849

Redemptions

(4,123,734

)

(9,247,346

)

Net investment loss

(51,375

)

(110,014

)

Net realized gain/(loss) from investment in gold sold to pay expenses

(3,773

)

(5,170

)

Net realized gain/(loss) from gold distributed for the redemption of shares

(360,557

)

(447,044

)

Net change in unrealized appreciation/(depreciation) on investment in gold

3,069,394

(2,122,974

)

Net Assets - Closing Balance

$

32,572,402

$

24,612,170

(1)

Represents audited statement of changes in net assets as of September 30, 2015. Effective October 1, 2014, the Trust adopted the financial presentation provisions for an investment company. See Note 2.2.

The SPDR® Gold Trust (the Trust) is an investment trust formed on
November 12, 2004 (Date of Inception) under New York law pursuant to a trust indenture. The fiscal year end for the Trust is September 30th. The Trust holds gold and is expected from time to time to issue shares
(Shares) (in minimum denominations of 100,000 Shares, also referred to as Baskets) in exchange for deposits of gold and to distribute gold in connection with redemption of Baskets. The investment objective of the Trust
is for the Shares to reflect the performance of the price of gold bullion, less the Trusts expenses.

The Shares trade on the NYSE Arca, Inc.
(NYSE Arca) under the symbol GLD, providing investors with an efficient means to obtain market exposure to the price of gold bullion. The Shares are eligible for margin accounts. The Shares are also listed on the Mexican
Stock Exchange (Bolsa Mexicana de Valores), the Singapore Exchange Securities Trading Limited, the Stock Exchange of Hong Kong Limited and the Tokyo Stock Exchange.

BNY Mellon Asset Servicing, a division of The Bank of New York Mellon (the Trustee) does not actively manage the gold held by the Trust. This
means that the Trustee does not sell gold at times when its price is high, or acquire gold at low prices in the expectation of future price increases. It also means that the Trustee does not make use of any of the hedging techniques available to
professional gold investors to attempt to reduce the risk of losses resulting from price decreases. Any losses sustained by the Trust will adversely affect the value of the Shares.

Effective October 1, 2014, the Trust adopted the financial presentation provisions appropriate to an investment company for accounting purposes and
follows the accounting and reporting guidance under the Financial Accounting Standards Board (the FASB) Accounting Standards Codification Topic 946, Financial Services  Investment Companies (Topic 946), but is
not registered, and is not required to be registered, under the Investment Company Act of 1940, as amended (the Investment Company Act). Please refer to Note 2.2 Investment Company Status.

The statement of financial condition and schedule of investment at March 31, 2016, the statements of operations and of cash flows for the three and six months
ended March 31, 2016 and 2015 and the statement of changes in net assets for the six months ended March 31, 2016 have been prepared on behalf of the Trust without audit. In the opinion of management of the sponsor of the Trust, World Gold
Trust Services, LLC (the Sponsor), all adjustments (which include normal recurring adjustments) necessary to present fairly the financial position, results of operations and cash flows as of and for the three and six months ended
March 31, 2016 and for all periods presented have been made.

These financial statements should be read in conjunction with the financial statements and
notes thereto included in the Trusts Annual Report on Form 10-K for the fiscal year ended September 30, 2015. The results of operations for the three and six months ended March 31, 2016 are not necessarily indicative of the operating
results for the full fiscal year.

2.

Significant Accounting Policies

The preparation of financial statements in accordance with accounting principles generally accepted in the United States of America requires
those responsible for preparing financial statements to make estimates and assumptions that affect the reported amounts and disclosures. Actual results could differ from those estimates. The following is a summary of significant accounting policies
followed by the Trust.

The financial statements have been prepared in conformity with U.S. generally
accepted accounting principles (U.S. GAAP), which require management to make certain estimates and assumptions that affect the reported amounts and disclosures in the financial statements. Actual results could differ from those
estimates.

2.2.

Investment Company Status

In June 2013, the FASB issued Accounting Standards Update 2013-08,
Investment Companies  Amendments to the Scope, Measurement, and Disclosure Requirements (ASU 2013-08). ASU 2013-08 is an update to Topic 946 that provides guidance to assess whether an entity is an investment company,
and establishes additional measurement and disclosure requirements for an investment company. ASU 2013-08 was effective for interim and annual periods beginning after December 15, 2013 and is required to be applied prospectively. The Sponsor
concluded that the Trust meets the definition of an investment company in accordance with the criteria of ASU 2013-08. As a result, effective October 1, 2014, the Trust qualifies as an investment company solely for accounting purposes
pursuant to the accounting and reporting guidance under Topic 946, but is not registered, and is not required to be registered, under the Investment Company Act.

As a result of the prospective application of ASU 2013-08, certain disclosures required by Topic 946 are only presented for periods beginning October 1,
2014. Financial statements and disclosures for periods prior to October 1, 2014 will continue to be presented in their previously reported form, however certain captions have been changed. The primary changes to the financial statements
resulting from the adoption of ASU 2013-08 and corresponding application of Topic 946 include:



Reporting of investment in gold at fair value on the Statement of Financial Condition, which was previously reported at the lower of average cost or market value;



Recognition of the net change in unrealized appreciation/depreciation on investment in gold within the Statements of Operations, which was previously reported as an Adjustment of redeemable shares to redemption
value on the Statement of Changes in Shareholders Deficit;



Shares of the Trust are classified as Net Assets on the Statement of Financial Condition, which was previously classified as Shares at redemption value to investors. An adjustment was recorded as of
October 1, 2014 to reclassify the balance of Shares at redemption value to investors at September 30, 2014 into Net Assets as follows (all balances in 000s):

Balance atSeptember 30, 2014

TransitionAdjustment

ASU 2013-08Balance atOctober 1, 2014

Shares at redemption value to investors

$

30,096,869

$

(30,096,869

)

$



Net Assets



30,096,869

30,096,869



The addition of a Schedule of Investments and a Financial Highlights note to the financial statements.

ASU
2013-08 prescribes that an entity that qualifies as an investment company as a result of an assessment of its status shall account for the effect of the change in status prospectively from the date of the change in status and shall recognize any
impact as a cumulative effect adjustment to the net asset value at the beginning of the period. No cumulative effect adjustment to net asset value was required to be recorded as a result of the Trusts adoption of ASU 2013-08 because the fair
value of gold bullion held by the Trust was lower than the cost of gold held by Trust at September 30, 2014.

Various inputs are used in determining the fair value of the Trusts assets or liabilities. These inputs are categorized into three broad levels. Level 1
includes unadjusted prices in active markets for identical assets or liabilities. Level 2 includes other significant observable market based inputs (including prices for similar securities, interest rates, prepayment speed, and credit risk). Level 3
includes unobservable inputs, which may include managements own assumptions in determining the fair value of investments. The Trust does not hold any derivative instruments, and its assets only consist of allocated gold bullion and gold
receivable; representing gold covered by contractually binding orders for the creation of Shares where the gold has not yet been transferred to the Trusts account and, from time to time, cash, which is used to pay expenses.

The following table summarizes the inputs used as of March 31, 2016 in determining the Trusts investments at fair value for purposes of ASC 820:

Level 1

Level 2

Level 3

Investment in Gold

$

32,760,852

$



$



Total

$

32,760,852

$



$



Prior to March 20, 2015, the Trustee valued the gold held by the Trust on the basis of the price of an ounce of gold set
by the afternoon session of the twice daily fix of the price of an ounce of gold which started at 3:00 PM London, England time and was performed by the members of the London Gold Fix.

On March 20, 2015, the LBMA Gold Price replaced the London Gold Fix. ICE Benchmark Administration Limited (IBA) an independent specialist
benchmark administrator provides the auction platform and methodology as well as the overall independent administration and governance for the LBMA Gold Price. In determining the net asset value (NAV) of the Trust, the Trustee values the
gold held by the Trust on the basis of the price of an ounce of gold determined by the IBA 3:00 PM auction process (LBMA Gold Price PM), which is an electronic auction, with the imbalance calculated, and the price adjusted in rounds (45
seconds in duration). The auction runs twice daily at 10:30 AM and 3:00 PM London time. The Trustee determines the NAV of the Trust on each day the NYSE Arca is open for regular trading, at the earlier of the LBMA Gold Price PM for the day or 12:00
PM New York time. If no LBMA Gold Price is made on a particular evaluation day or if the LBMA Gold Price has not been announced by 12:00 PM New York time on a particular evaluation day, the next most recent LBMA Gold Price (AM or PM) is used in the
determination of the NAV of the Trust, unless the Trustee, in consultation with the Sponsor, determines that such price is inappropriate to use as the basis for such determination.

Prior to July 17, 2015, once the value of the gold had been determined, the Trustee subtracted all estimated accrued fees (other than the fees to be
computed by reference to the value of the adjusted net asset value (ANAV) of the Trust or custody fees computed by reference to the value of gold held in the Trust), expenses and other liabilities of the Trust from the total value of the
gold and all other assets of the Trust (other than any amounts credited to the Trusts reserve account, if established). The resulting figure was the ANAV of the Trust. The ANAV of the Trust was used to compute the fees of the Trustee, the
Sponsor and the Marketing Agent prior to July 17, 2015.

To determine the Trusts NAV, the Trustee subtracted from the ANAV of the Trust the
amount of estimated accrued but unpaid fees computed by reference to the value of the ANAV of the Trust and computed by reference to the value of the gold held in the Trust. The Trustee determined the NAV per Share by dividing the NAV of the Trust
by the number of Shares outstanding as of the close of trading on the NYSE Arca.

Effective July 17, 2015, the Trusts only recurring expense is the Sponsors fee which accrues
daily at an annual rate equal to 0.40% of the daily NAV, in exchange for the Sponsor assuming the responsibility to pay all ordinary fees and expenses of the Trust.

2.4.

Custody of Gold

Effective December 22, 2014, HSBC Bank plc (the Custodian) assumed
custodial responsibilities for the gold of the Trust from HSBC Bank USA, N.A.

2.5.

Gold Receivable

Gold receivable represents the quantity of gold covered by contractually binding
orders for the creation of Shares where the gold has not yet been transferred to the Trusts account. Generally, ownership of the gold is transferred within three business days of the trade date.

(Amounts in 000s of US$)

Mar-31,2016

Sep-30,2015

Gold receivable

$

70,939

$

117,353

2.6.

Gold Payable

Gold payable represents the quantity of gold covered by contractually binding orders for
the redemption of Shares where the gold has not yet been transferred out of the Trusts account. Generally, ownership of the gold is transferred within three business days of the trade date.

(Amounts in 000s of US$)

Mar-31,2016

Sep-30,2015

Gold payable

$

248,287

$



2.7.

Creations and Redemptions of Shares

The Trust creates and redeems Shares from time to time, but only
in one or more Baskets (a Basket equals a block of 100,000 Shares). The Trust issues Shares in Baskets to certain authorized participants (Authorized Participants) on an ongoing basis. The creation and redemption of Baskets is only
made in exchange for the delivery to the Trust or the distribution by the Trust of the amount of gold and any cash represented by the Baskets being created or redeemed, the amount of which will be based on the combined net asset value of the number
of Shares included in the Baskets being created or redeemed determined on the day the order to create or redeem Baskets is properly received.

As the
Shares of the Trust are redeemable in Baskets at the option of the Authorized Participants, the Trust has classified the Shares as Net Assets as of March 31, 2016. Changes in the Shares for the six months ended March 31, 2016 and for the year
ended September 30, 2015, are as follows:

The Trustee will, at the direction of the Sponsor or in its own discretion,
sell the Trusts gold as necessary to pay the Trusts expenses. When selling gold to pay expenses, the Trustee will endeavor to sell the smallest amount of gold needed to pay expenses in order to minimize the Trusts holdings of
assets other than gold. Unless otherwise directed by the Sponsor, when selling gold, the Trustee will endeavor to sell at the price established by the LBMA Gold Price PM. The Trustee will place orders with dealers (which may include the Custodian)
through which the Trustee expects to receive the most favorable price and execution of orders. The Custodian may be the purchaser of such gold only if the sale transaction is made at the next LBMA Gold Price (either AM or PM) following the sale
order. A gain or loss is recognized based on the difference between the selling price and the average cost of the gold sold, and such amounts are reported as net realized gain/(loss) from investment in gold sold to pay expenses on the Statement of
Operations.

The Trusts net realized and change in unrealized gain/(loss) on investment in gold for the six month period ended March 31, 2016 of
$2,705,064 is made up of a loss of ($3,773) on the sale of gold to pay expenses, plus a loss of ($360,557) on gold distributed for the redemption of Shares, plus a change in unrealized appreciation of $3,069,394 on investment in gold.

The Trusts net realized and change in unrealized gain/(loss) on investment in gold for the six month period ended March 31, 2015 of ($896,793) is made
up of a loss of ($1,714) on the sale of gold to pay expenses, plus a loss of ($166,647) on gold distributed for the redemption of Shares, plus a change in unrealized depreciation of ($728,432) on investment in gold.

2.9.

Income Taxes

The Trust is classified as a grantor trust for US federal income tax
purposes. As a result, the Trust itself will not be subject to US federal income tax. Instead, the Trusts income and expenses will flow through to the Shareholders, and the Trustee will report the Trusts proceeds, income,
deductions, gains, and losses to the Internal Revenue Service on that basis. The Sponsor of the Trust has evaluated whether or not there are uncertain tax positions that require financial statement recognition and has determined that no reserves for
uncertain tax positions are required as of March 31, 2016 or September 30, 2015.

The Sponsor evaluates tax positions taken or expected to be taken
in the course of preparing the Trusts tax returns to determine whether the tax positions are more-likely-than-not to be sustained by the applicable tax authority. Tax positions not deemed to meet that threshold would be recorded as
an expense in the current year. The Trust is required to analyze all open tax years. Open tax years are those years that are open for examination by the relevant income taxing authority. As of March 31 2016, the 2015, 2014 and 2013 tax years
remain open for examination. There are no examinations in progress at period end.

3.

Related Parties Sponsor and Trustee

Prior to July 17, 2015, fees were
paid by the Trust to the Sponsor as compensation for services performed under the Trust Indenture and for services performed in connection with maintaining the Trusts website and marketing the Shares. The Sponsors fee was payable monthly
in arrears and accrued daily at an annual rate equal to 0.15%

of the ANAV of the Trust, subject to reduction as described below. The Sponsor received reimbursement from the Trust for all of its disbursements and expenses incurred in connection with the
Trust.

Fees were paid to the Trustee as compensation for services performed under the Trust Indenture. The Trustees fee was payable monthly in
arrears. Prior to July 17, 2015 the Trustees fee was accrued daily at an annual rate equal to 0.02% of the ANAV of the Trust, subject to a minimum fee of $500,000 and a maximum fee of $2 million per year. The Trustees fee was
subject to modification as determined by the Trustee and the Sponsor in good faith to account for significant changes in the Trusts administration or the Trustees duties. The Trustee was also paid for its expenses and disbursements
incurred in connection with the Trust (including the expenses of the Custodian paid by the Trustee), exclusive of fees of agents for services to be performed by the Trustee, and for any extraordinary services performed by the Trustee for the Trust.
The Trustees fees were paid by the Trust prior to July 17, 2015 and by the Sponsor from July 17, 2015.

Effective July 17, 2015, the
Trusts only recurring expense is the Sponsors fee which accrues daily at an annual rate equal to 0.40% of the daily NAV, in exchange for the Sponsor assuming the responsibility to pay all ordinary fees and expenses of the Trust.

Affiliates of the Trustee may from time to time act as Authorized Participants or purchase or sell gold or Shares for their own account, as agent for their
customers and for accounts over which they exercise investment discretion.

3.1.

Other Vendor Agreements

Fees are paid to the Custodian under the Allocated Bullion Account Agreement
between the Trustee and the Custodian (as amended, the Allocated Bullion Account Agreement) as compensation for its custody services. Prior to July 17, 2015 the Custodians fee was computed at an annual rate equal to 0.10% of
the average daily aggregate value of the first 4.5 million ounces of gold held in the Trusts allocated gold account (Trust Allocated Account) and the Trusts unallocated gold account (Trust Unallocated
Account) and 0.06% of the average daily aggregate value of all gold held in the Trust Allocated Account and the Trust Unallocated Account in excess of 4.5 million ounces. The Custodians fees were paid by the Trust prior to
July 17, 2015 and have been paid by the Sponsor since July 17, 2015.

The Custodian and its affiliates may from time to time act as Authorized
Participants or purchase or sell gold or Shares for their own account, as agent for their customers and for accounts over which they exercise investment discretion.

Fees are paid to the marketing agent for the Trust, State Street Global Markets, LLC (the Marketing Agent), as compensation for services performed
pursuant to the Marketing Agent Agreement, between the Sponsor and the Marketing Agent (as amended, the Marketing Agent Agreement). Prior to July 17, 2015 the Marketing Agents fee was payable monthly in arrears and was accrued
daily at an annual rate equal to 0.15% of the ANAV of the Trust, subject to reduction as described below. The Marketing Agents fees were paid by the Trustee prior to July 17, 2015 and have been paid by the Sponsor since July 17,
2015.

Prior to July 17, 2015, if at the end of any month, the estimated ordinary expenses of the Trust exceeded an amount equal to 0.40% per
year of the daily ANAV of the Trust for such month, the Sponsor and the Marketing Agent would reduce the amount of such excess from the fees payable to them from the assets of the Trust for such month in equal shares up to the amount of their fees.
For the period from October 1, 2014 through July 16, 2015, the Sponsor and the Marketing Agent reduced their fees in the amount of $2,047,695 each, since the Trusts ordinary expenses exceeded 0.40% per year of the daily ANAV of
the Trust.

The Marketing Agent and its affiliates may from time to time act as Authorized Participants or purchase or sell gold or Shares for their own
account, as agent for their customers and for accounts over which they exercise investment discretion.

Effective July 17, 2015, the Trusts only recurring expense is the Sponsors fee which accrues
daily at an annual rate equal to 0.40% of the daily NAV, in exchange for the Sponsor assuming the responsibility to pay all ordinary fees and expenses of the Trust which include fees and expenses of the Trustee, the fees and expenses of the
Custodian for the custody of the Trusts gold bars, the fees and expenses of the Sponsor, certain taxes, the fees of the Marketing Agent, printing and mailing costs, legal and audit fees, registration fees, NYSE Arca listing fees and other
marketing costs and expenses. In order to pay the Trusts expenses, the Trustee sells gold held by the Trust on an as-needed basis. Each sale of gold by the Trust is a taxable event to the Shareholders.

Amounts Payable to Related Parties and Other Vendor Agreements

(Amounts in 000s of US$)

Mar-31,2016

Sep-30,2015

Payable to Custodian

$



$



Payable to Trustee





Payable to Sponsor

10,930

8,089

Payable to Marketing Agent





Accounts Payable to Related Parties and Other Vendors

$

10,930

$

8,089

4.

Concentration of Risk

The Trusts sole business activity is the investment in gold. Various factors could affect the price of gold: (i) global gold
supply and demand, which is influenced by such factors as forward selling by gold producers, purchases made by gold producers to unwind gold hedge positions, central bank purchases and sales, and production and cost levels in major gold-producing
countries such as China, Australia, South Africa and the United States; (ii) investors expectations with respect to the rate of inflation; (iii) currency exchange rates; (iv) interest rates; (v) investment and trading
activities of hedge funds and commodity funds; and (vi) global or regional political, economic or financial events and situations. In addition, there is no assurance that gold will maintain its long-term value in terms of purchasing power in
the future. In the event that the price of gold declines, the Sponsor expects the value of an investment in the Shares to decline proportionately. Each of these events could have a material effect on the Trusts financial position and results
of operations.

5.

Indemnification

The Sponsor and its shareholders, members, directors, officers, employees, affiliates and subsidiaries are indemnified from the Trust and
held harmless against certain losses, liabilities or expenses incurred in the performance of their duties under the Trust Indenture without gross negligence, bad faith, willful misconduct, willful malfeasance or reckless disregard of the
indemnified partys obligations and duties under the Trust Indenture. Such indemnity includes payment from the Trust of the costs and expenses incurred in defending against any claim or liability under the Trust Indenture. Under the
Trust Indenture, the Sponsor may be able to seek indemnification from the Trust for payments it makes in connection with the Sponsors activities under the Trust Indenture to the extent its conduct does not disqualify it from
receiving such indemnification under the terms of the Trust Indenture. The Sponsor will also be indemnified from the Trust and held harmless against any loss, liability or expense arising under the Marketing Agent Agreement or any agreement
entered into with an Authorized Participant which provides the procedures for the creation and redemption of Baskets and for the delivery of gold and any cash required for creations and redemptions insofar as such loss, liability or expense arises
from any untrue statement or alleged untrue statement of a material fact contained in any written statement provided to the Sponsor by the Trustee. Any amounts payable to the Sponsor are secured by a lien on the Trust.

The Sponsor has agreed to indemnify certain parties against certain liabilities and to contribute to payments
that such parties may be required to make in respect of those liabilities. The Trustee has agreed to reimburse such parties, solely from and to the extent of the Trusts assets, for indemnification and contribution amounts due from the Sponsor
in respect of such liabilities to the extent the Sponsor has not paid such amounts when due. The Sponsor has agreed that, to the extent the Trustee pays any amount in respect of the reimbursement obligations described in the preceding sentence, the
Trustee, for the benefit of the Trust, will be subrogated to and will succeed to the rights of the party so reimbursed against the Sponsor.

6.

Financial Highlights

The Trust is presenting the following financial highlights related to investment performance and operations of a Share outstanding for the
three and six month periods ended March 31, 2016 and 2015. The net investment loss and total expense ratios have been annualized. The total return at net asset value is based on the change in net asset value of a Share during the period and the
total return at market value is based on the change in market value of a Share on the NYSE Arca during the period. An individual investors return and ratios may vary based on the timing of capital transactions.

Three MonthsEndedMarch 31,2016

Three MonthsEndedMarch 31,2015

Six MonthsEndedMarch 31,2016

Six MonthsEndedMarch 31,2015

Net Asset Value

Net asset value per Share, beginning of period

$

101.62

$

115.20

$

106.68

$

116.97

Net investment income/(loss)

(0.11

)

(0.12

)

(0.22

)

(0.23

)

Net Realized and Change in Unrealized Gain (Loss)

16.72

(1.17

)

11.77

(2.83

)

Net Income/(Loss)

16.61

(1.29

)

11.55

(3.06

)

Net asset value per Share, end of period

$

118.23

$

113.91

$

118.23

$

113.91

Market value per Share, beginning of period

$

101.46

$

113.58

$

106.86

$

116.21

Market value per Share, end of period

$

117.64

$

113.66

$

117.64

$

113.66

Ratio to average net assets

Net Investment income/(loss)(1)

(0.40

)%

(0.40

)%

(0.40

)%

(0.40

)%

Gross Expenses(1)

0.40

%

0.41

%

0.40

%

0.43

%

Net Expenses(1)

0.40

%

0.40

%(3)

0.40

%

0.40

%(3)

Total Return, at net asset value (2)

16.35

%

(1.12

)%

10.83

%

(2.62

)%

Total Return, at market value (2)

15.95

%

0.07

%

10.09

%

(2.19

)%

(1)

Percentages are annualized.

(2)

Percentages are not annualized.

(3)

Net expense ratio reflects fee waivers for the three and six month periods ended March 31,2015.

7.

Subsequent Events

The Sponsor has evaluated events through the issuance of financial statements and determined that no events have occurred that require
disclosure.

Managements Discussion and Analysis of Financial Condition and Results of Operations

This information should be read in conjunction with the financial statements and notes included in Item 1 of Part I of this Quarterly Report. The
discussion and analysis which follows may contain trend analysis and other forward-looking statements within the meaning of Section 21E of the Securities Exchange Act of 1934 which reflect our current views with respect to future events and
financial results. Words such as anticipate, expect, intend, plan, believe, seek, outlook and estimate as well as similar words and phrases signify
forward-looking statements. SPDR® Gold Trusts forward-looking statements are not guarantees of future results and conditions and important factors, risks and uncertainties may
cause our actual results to differ materially from those expressed in our forward-looking statements.

Trust Overview

SPDR® Gold Trust is an investment trust that was formed on November 12, 2004 (Date of
Inception). The Trust issues baskets of Shares, or Baskets, in exchange for deposits of gold and distributes gold in connection with the redemption of Baskets. The investment objective of the Trust is for the Shares to reflect the performance
of the price of gold bullion, less the expenses of the Trusts operations. The Shares are designed to provide investors with a cost effective and convenient way to invest in gold.

Investing in the Shares does not insulate the investor from certain risks, including price volatility. The following chart illustrates the movement in the
price of the Shares and NAV of the Shares against the corresponding gold price (per 1/10 of an oz. of gold) since the day the Shares first began trading on the NYSE:

The divergence of the price of the Shares and NAV of the Shares from the gold price over time reflects the
cumulative effect of the Trust expenses that arise if an investment had been held since inception.

Critical Accounting Policy

Valuation of Gold, Definition of NAV

As of the LBMA Gold
Price on each day that the NYSE Arca is open for regular trading or, if there is no LBMA Gold Price on such day or the LBMA Gold Price has not been announced by 12:00 PM New York time on such day, as of 12:00 PM New York time on such day, or the
Valuation Time, the Trustee values the gold held by the Trust and determines the NAV of the Trust.

At the Valuation Time, the Trustee values the
Trusts gold on the basis of that days LBMA Gold Price PM or, if no LBMA Gold Price PM is made on such day or has not been announced by the Valuation Time, the next most recent LBMA Gold Price (AM or PM) determined prior to the Valuation
Time will be used, unless the Trustee, in consultation with the Sponsor, determines that such price is inappropriate as a basis for valuation. In the event the Trustee and the Sponsor determine that the LBMA Gold Price PM or last prior LBMA Gold
Price (AM or PM) is not an appropriate basis for valuation of the Trusts gold, they will identify an alternative basis for such valuation to be employed by the Trustee. While we believe that the LBMA Gold Price is an appropriate indicator of
the value of gold, there are other indicators that are available that could be different than the LBMA Gold Price. The use of such an alternative indicator could result in materially different fair value pricing of the gold in the Trust which could
result in different market adjustments or redemption value adjustments of our outstanding redeemable Shares.

Once the value of the gold has been
determined, the Trustee subtracts all estimated accrued unitary fees, expenses and other liabilities of the Trust from the total value of the gold and all other assets of the Trust (other than any amounts credited to the Trusts reserve
account, if established). The resulting figure is the NAV of the Trust. The NAV of the Trust is used to compute the Sponsors fee. The Trustee determines the NAV per Share by dividing the NAV of the Trust by the number of Shares outstanding as
of the close of trading on NYSE Arca.

Custody of Gold

Gold is held by HSBC Bank plc (the Custodian) on behalf of the Trust.

Results of Operations

In the six months ended March 31,
2016, an additional 83,000,000 Shares (830 Baskets) were created in exchange for 7,937,885 ounces of gold, 38,200,000 Shares (382 Baskets) were redeemed in exchange for 3,655,384 ounces of gold, and 42,896 ounces of gold were sold to
pay expenses.

As at March 31, 2016, the Custodian held 26,484,117 ounces of gold on behalf of the Trust in its vault, 100% of which is allocated gold in
the form of London Good Delivery gold bars including gold payable, with a market value of $32,760,852,177 (cost  $32,291,685,964) based on the LBMA Gold Price PM on March 31, 2016. Subcustodians held no gold on behalf of the Trust as of March
31, 2016. During the quarter ended March 31, 2016, the greatest amount of gold held by subcustodians was approximately 29 tonnes or approximately 3.8% of the Trusts gold at such date. The Bank of England held that gold as subcustodian.

As at September 30, 2015, the Custodian held 21,995,797 ounces of gold in its vault 100% of which is allocated gold in the form of London Good Delivery
gold bars including gold payable, with a market value of $24,503,317,923 (cost  $27,103,546,125). Subcustodians held nil ounces of gold in their vaults on behalf of the Trust.

As at March 14, 2016, Inspectorate International Limited, a subsidiary of Bureau Veritas Inspectorate, concluded the annual random sample count of the
Trusts gold bullion held by the Custodian. The results can be found on www.spdrgoldshares.com.

At March 31, 2016 the Trust did not have any cash balances. When selling gold to pay expenses, the Trustee endeavors to sell the exact amount of gold needed to
pay expenses in order to minimize the Trusts holdings of assets other than gold. As a consequence, we expect that the Trust will not record any cash flow from its operations and that its cash balance will be zero at the end of each reporting
period.

Analysis of Movements in the Price of Gold

As movements in the price of gold are expected to directly affect the price of the Trusts Shares, investors should understand what the recent movements
in the price of gold have been. Investors, however, should also be aware that past movements in the gold price are not indicators of future movements. This section identifies recent trends in the movements of the gold price.

The following chart provides historical background on the price of gold. The chart illustrates movements in the price of gold in US dollars per ounce over the
period from April 1, 2011 to March 31, 2016, and is based on the LBMA Gold Price PM since March 20, 2015 and previously the London PM Fix.

The average, high, low and end-of-period gold prices for the three and twelve month periods over the prior three
years and for the period from the Date of Inception through March 31, 2016, based on the LBMA Gold Price PM (formerly the London PM Fix), were:

Period

Average

High

Date

Low

Date

End ofperiod

Lastbusinessday(1)

Three months to June 30, 2013

$

1,414.80

$

1,583.50

Apr 02, 2013

$

1,192.00

Jun 28, 2013

$

1,192.00

Jun 28, 2013

Three months to September 30, 2013

$

1,326.28

$

1,419.50

Aug 28, 2013

$

1,212.75

Jul 05, 2013

$

1,326.50

Sep 30, 2013

Three months to December 31, 2013

$

1,273.75

(3)

$

1,361.00

Oct 28, 2013

$

1,195.25

Dec 20, 2013

$

1,201.50

Dec 31, 2013

(2)

Three months to March 31, 2014

$

1,293.06

$

1,385.00

Mar 14, 2014

$

1,221.00

Jan 08, 2014

$

1,291.75

Mar 31, 2014

Three months to June 30, 2014

$

1,288.44

$

1,325.75

Apr 14, 2014

$

1,242.75

Jun 03, 2014

$

1,315.00

Jun 30, 2014

Three months to September 30, 2014

$

1,281.21

$

1,340.25

Jul 10, 2014

$

1,213.50

Sep 22, 2014

$

1,216.50

Sep 30, 2014

Three months to December 31, 2014

$

1,200.69

(3)

$

1,250.25

Oct 21, 2014

$

1,142.00

Nov 05, 2014

$

1,199.25

Dec 31, 2014

(2)

Three months to March 31, 2015

$

1,217.37

$

1,295.75

Jan 22, 2015

$

1,147.25

Mar 18, 2015

$

1,187.00

Mar 31, 2015

Three months to June 30, 2015

$

1,192.19

$

1,225.00

May 14, 2015

$

1,164.60

Jun 05, 2015

$

1,171.00

Jun 30, 2015

Three months to September 30, 2015

$

1,123.87

$

1,168.00

Jul 01, 2015

$

1,080.80

Jul 24, 2015

$

1,114.00

Sep 30, 2015

Three months to December 31, 2015

$

1,105.29

(3)

$

1,184.25

Oct 15, 2015

$

1,049.40

Dec 17, 2015

$

1,062.25

Dec 31, 2015

(2)

Three months to March 31, 2016

$

1,184.30

$

1,277.50

Mar 04, 2016

$

1,077.00

Jan 05, 2016

$

1,237.00

Mar 31, 2016

Twelve months ended March 31, 2014

$

1,326.41

$

1,583.50

Apr 02, 2013

$

1,192.00

Jun 28, 2013

$

1,291.75

Mar 31, 2014

Twelve months ended March 31, 2015

$

1,247.11

$

1,340.25

Jul 10, 2014

$

1,142.00

Nov 05, 2014

$

1,187.00

Mar 31, 2015

Twelve months ended March 31, 2016

$

1,150.86

$

1,277.50

Mar 04, 2016

$

1,049.40

Dec 17, 2015

$

1,237.00

Mar 31, 2016

November 12, 2004 to March 31, 2016

$

1,075.46

$

1,895.00

Sep 05, 2011

$

411.10

Feb 08, 2005

$

1,237.00

Mar 31, 2016

(1)

The end of period gold price is the LBMA Gold Price PM (formerly the London PM Fix) on the last business day of the period. This is in accordance with the Trust Indenture and the basis used for calculating the Net
Asset Value of the Trust.

(2)

There was no LBMA Gold Price PM on the last business day of December 2015. There was no London PM Fix on the last business day of December 2013 and 2014. The LBMA Gold Price AM on the last business day of December
2015 was $1,062.25. The London AM Fix on the last business day of December 2013 and 2014 was $1,201.50 and $1,199.25, respectively. The Net Asset Value of the Trust on December 31, 2015 was calculated using the LBMA Gold Price AM, in accordance
with the Trust Indenture. The Net Asset Value of the Trust on December 30, 2013 and December 31, 2014 was calculated using the London AM Fix, in accordance with the Trust Indenture.

(3)

There was no LBMA Gold Price PM or London PM Fix for both December 24 and December 31 for the periods ended 2013, 2014 and 2015. For comparative purposes, the average was calculated using the LBMA Gold Price
AM or London AM Fix for those business days. Accordingly, the Net Asset Value of the Trust for December 24 and December 31 for the periods ended 2013, 2014 and 2015, was calculated using the LBMA Gold Price AM or London AM Fix, as
applicable.

The Trust Indenture does not
authorize the Trustee to borrow for payment of the Trusts ordinary expenses. The Trust does not engage in transactions in foreign currencies which could expose the Trust or holders of Shares to any foreign currency related market risk. The
Trust does not invest in any derivative financial instruments or long-term debt instruments.

Item 4.

Controls and Procedures

Disclosure controls and procedures. Under the supervision
and with the participation of the Sponsor, World Gold Trust Services, LLC, including its chief executive officer and chief financial officer, we carried out an evaluation of the effectiveness of the design and operation of the Trusts
disclosure controls and procedures. Based upon that evaluation, our chief executive officer and chief financial officer concluded that the disclosure controls and procedures were effective as of the end of the period covered by this quarterly
report.

Internal control over financial reporting. There has been no change in the internal control of the Trust over financial reporting
that occurred during our most recent fiscal quarter that has materially affected, or is reasonably likely to materially affect, the internal control over financial reporting.

PART II - OTHER INFORMATION:

Item 1.

Legal Proceedings

Not applicable.

Item 1A.

Risk Factors

You should carefully consider the factors discussed in Part I, Item 1A.
Risk Factors in our Annual Report on Form 10-K for the year ended September 30, 2015, which could materially affect our business, financial condition or future results. The risks described in our Annual Report on Form 10-K
are not the only risks facing the Trust. Additional risks and uncertainties not currently known to us or that we currently deem to be immaterial also may materially adversely affect our business, financial condition and/or operating results.

Item 2.

Unregistered Sales of Equity Securities and Use of Proceeds

a)

None.

b)

Not applicable.

c)

As of the date of the formation of the Trust on November 12, 2004, the NAV of the Trust, which represents the value of the gold deposited in the Trust, was $13,081,500, and the NAV per Share was $43.60. Since
formation and through March 31, 2016, 10,923 Baskets (1,092,300,000 Shares) have been created and 8,168 Baskets (816,800,000 Shares) have been redeemed.

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned
in the capacities* indicated thereunto duly authorized.

WORLD GOLD TRUST SERVICES, LLC

Sponsor of the SPDR® Gold
Trust

(Registrant)

/s/ Aram Shishmanian

Aram Shishmanian

Principal Executive Officer

/s/ Samantha McDonald

Samantha McDonald

Principal Financial and Accounting Officer

Date: April 29, 2016

*

The Registrant is a trust and the persons are signing in their capacities as officers of World Gold Trust Services, LLC, the Sponsor of the Registrant.

Certification of Chief Executive Officer pursuant to Rule 13a-14(a) and 15d-14(a) under the Securities Exchange Act of 1934, as amended, with respect to the Trusts Quarterly Report on Form 10-Q for the quarter ended
March 31, 2016.

31.2

Certification of Chief Financial Officer pursuant to Rule 13a-14(a) and 15d-14(a) under the Securities Exchange Act of 1934, as amended, with respect to the Trusts Quarterly Report on Form 10-Q for the quarter ended
March 31, 2016.

32.1

Certification of Principal Executive Officer pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, with respect to the Trusts Quarterly Report on Form 10-Q for the quarter ended
March 31, 2016.

32.2

Certification of Principal Financial Officer pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, with respect to the Trusts Quarterly Report on Form 10-Q for the quarter ended
March 31, 2016.

101.INS*

XBRL Instance Document

101.SCH*

XBRL Taxonomy Extension Schema Document

101.CAL*

XBRL Taxonomy Extension Calculation Linkbase Document

101.LAB*

XBRL Taxonomy Extension Label Linkbase Document

101.PRE*

XBRL Taxonomy Extension Presentation Linkbase Document

101.DEF*

XBRL Taxonomy Extension Definition Linkbase Document

*

Pursuant to Rule 406T of Regulation S-T, these interactive data files are deemed not filed or part of a registration statement or prospectus for purposes of Sections 11 or 12 of the Securities Act of
1933, as amended, are deemed not filed for the purposes of Section 18 of the Securities and Exchange Act of 1934, as amended, and otherwise are not subject to liability under those sections.